HP-UX 11i Version 1 Installation and Update Guide, June 2004

Known Problems and Troubleshooting
Common Install and Update Error and Warning Messages
Appendix B184
EISA 100BT Warning Message
When you remove an EISA 100BT product from a system or update a
system having EISA 100BT to any later releases of HP-UX, you may find
the following message in the /var/adm/sw/swagent.log file:
Running remove setup command /usr/lbin/sw/remove_setup.
/dev/diag/ether* not found.
This behavior is present in HP-UX 10.20 to 11i (B.11.11) versions of this
product. Presence or absence of this file on a system will not have any
impact on this product. You may safely ignore this message.